67696169 has 6 divisors (see below), whose sum is σ = 68170410. Its totient is φ = 67225200.

The previous prime is 67696163. The next prime is 67696217. The reversal of 67696169 is 96169676.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36481600 + 31214569 = 6040^2 + 5587^2 .

It is a de Polignac number, because none of the positive numbers 2^k-67696169 is a prime.

It is a super-2 number, since 2×67696169² = 9165542594553122, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67696163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21317 + ... + 24285.

It is an arithmetic number, because the mean of its divisors is an integer number (11361735).

Almost surely, 2^67696169 is an apocalyptic number.

It is an amenable number.

67696169 is a deficient number, since it is larger than the sum of its proper divisors (474241).

67696169 is an equidigital number, since it uses as much as digits as its factorization.

67696169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271 (or 3120 counting only the distinct ones).

The product of its digits is 734832, while the sum is 50.

The square root of 67696169 is about 8227.7681663985. The cubic root of 67696169 is about 407.5566940328.

The spelling of 67696169 in words is "sixty-seven million, six hundred ninety-six thousand, one hundred sixty-nine".